A dazzling Oxygen design. Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table and is a highly reactive nonmetal and oxidizing agent that readily forms oxides with most elements as well as other compounds. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. Brought to you by Periodic-Tees.com

A groundbreaking Sulfur design. Sulfur or sulphur is a chemical element with symbol S and atomic number 16. It is abundant, multivalent, and nonmetalic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S8. Brought to you by Periodic-Tees.com

A compelling Nitrogen design. Nitrogen is a chemical element with symbol N and atomic number 7. It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772. Although Carl Wilhelm Scheele and Henry Cavendish had independently done so at about the same time, Rutherford is generally accorded the credit because his work was published first. Brought to you by Periodic-Tees.com

An enriching Lanthanum design. Lanthanum is a soft, ductile, silvery-white metallic chemical element with symbol La and atomic number 57. It tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. Brought to you by Periodic-Tees.com

An epic Magnesium design. Magnesium is a chemical element with symbol Mg and atomic number 12. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (Group 2, or alkaline earth metals) of the periodic table: all Group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure. Magnesium is the ninth most abundant element in the universe. Brought to you by Periodic-Tees.com

Blac text with different thickness to different words. The text is a science reference joke and says "I had a super busy day converting oxygen into carbon dioxide". The phrase is divided up into eight lines and the word into has to lines beside is, one on each side.

Cerebral hypoxia has got to be a common issue with pocket monsters. Brain damage as a result of oxygen deprivation due to being stuffed in an air tight ball. Even if you argue they have air vents, you know pocket lint has to clog those things up.
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